/**
 * @(#)SpringUtil.java
 * Description: 容器获取工具类
 * Version :    0.0.0
 * Copyright:   Copyright (c)
 * Create by:   w15579  2017年9月23日
 */
package com.zn.kjj.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * @ClassName: SpringUtil
 * @Description: 容器获取工具类
 * @author w15579
 * @date. 2017年9月23日
 * @version v1.0.0
 */
@Component
public class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;
    /* (non-Javadoc)
     * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
     */
    @Override
    public void setApplicationContext(ApplicationContext arg0) throws BeansException {
        if(SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = arg0;
        }
    }
    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
    //通过name获取 Bean.
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }
    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }
    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }
}
